IAMVideoCompression::get_Quality
This method retrieves the current compression quality.
HRESULT get_Quality(
double* pQuality
);
Parameters
- pQuality
[out] Pointer to a double variable that receives the relative compression quality. The quality is expressed as a value between 0.0 and 1.0, where 1.0 indicates the best quality and 0.0 indicates the worst quality. If the value is negative, the filter will use the default quality.
Return Values
Returns an HRESULT value.
Remarks
The exact meaning of the quality setting depends on the filter.
To determine if the filter supports this method, call the IAMVideoCompression::GetInfo method and check for the CompressionCaps_CanQuality flag (see CompressionCaps) in the pCapabilities parameter. The GetInfo method also returns the default quality.
Requirements
DirectShow applications and DirectShow filters have different include file and link library requirements. See Setting Up the Build Environment for more information.
Pocket PC: Windows Mobile 5.0 and later
Smartphone: Windows Mobile 5.0 and later
OS Versions: Windows CE 5.01 and later.
Header:
See Also
IAMVideoCompression Interface | IAMVideoCompression::put_Quality | IAMVideoCompression::GetInfo | CompressionCaps
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